beforeness先前存在的条件
beforeconj.在 ... 以前pref.在 ... 以前;在..前面adv.以前;以往;之前
Before validation policy先验证策略
before test and analysis分析检验前
before the market closes在收市前
Before only equips in.以前只装备在中里。
before the Christian Era公元前
before-separation cost分离前成本
Before the Pope is dying赶在教皇驾崩之前
before you can say knife突然
before and after diagram之前和之后的图式
before one can say knife一下子